Saturday, November 28, 2009

New to the "Top 5" list

A new entry to my all-time Top 5 list of bad advice I got from Oracle Support:

Oracle Support: You should distribute your log groups to multiple disks to avoid contention.
Me: But doesn't Oracle write to only one group at a time?
Oracle Support: No, we're multi-threaded.
Me: So you're telling me that Oracle writes to more than one redo log group at a time?
Oracle Support: Yes.
Me: Please close this TAR, I'll open another one.

3 comments:

Niall said...

groups/members, hey who needs to know the difference anyway!

of course the reading of the previous log groups to archive them *could* give you contention...

Niall

Noons said...

Narh: it's all "multi-threaded"!...

Aman.... said...

ROTFL Oracle support is on the verge of setting new standards and teaching free of cost some under the hood changes like this ;-).

Aman....